coastline
noun
coast·line
ˈkōs(t)-ˌlīn 
1
: a line that forms the boundary between the land and the ocean or a lake
2
: the outline of a coast
Examples of coastline in a Sentence
The plane flew along the eastern coastline.
Recent Examples on the Web
Madeleine McCann vanished without a trace while on vacation with her family in the resort town of Praia da Luz on Portugal’s western Algarve coastline in on May 3, 2007.
—
Christine Pelisek, Peoplemag, 10 June 2024
Authorities also said that the process of changing the beach warning flags along the coastline would have taken about an hour and a half to complete.
—Victoria Arancio, ABC News, 8 June 2024
Maine and Alaska, home to two of the nation’s longest coastlines, have some of the highest percentages of non-swimmers.
—Brianna Taylor, Sacramento Bee, 6 June 2024
Until the mid-20th century, however, most Mauritians considered the coastline inhospitable because of its high winds and a lack of fresh water, and there was little commercial fishing.
—Jack Thompson, The Christian Science Monitor, 4 June 2024
See all Example Sentences for coastline 
Christine Pelisek, Peoplemag, 10 June 2024
Authorities also said that the process of changing the beach warning flags along the coastline would have taken about an hour and a half to complete.
—Victoria Arancio, ABC News, 8 June 2024
Maine and Alaska, home to two of the nation’s longest coastlines, have some of the highest percentages of non-swimmers.
—Brianna Taylor, Sacramento Bee, 6 June 2024
Until the mid-20th century, however, most Mauritians considered the coastline inhospitable because of its high winds and a lack of fresh water, and there was little commercial fishing.
—Jack Thompson, The Christian Science Monitor, 4 June 2024
See all Example Sentences for coastline
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'coastline.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near coastline
Cite this Entry
“Coastline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coastline. Accessed 20 Jun. 2024.
Copy CitationKids Definition
coastline
noun
coast·line
ˈkōst-ˌlīn
: the outline or shape of a coast
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